Colloidal Dispersions Quiz

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Questions and Answers

What are the pharmaceutical applications of colloids mainly related to?

Solubility, stability, and taste of certain compounds (correct)
Color and odor of certain compounds
Viscosity and density of certain compounds
Reactivity and volatility of certain compounds

Which class of colloidal system is characterized by having a strong affinity for the dispersion medium?

Lyophobic
Association
Lyophilic (correct)
Electrolytic

What is fundamental to understanding the behavior of pharmaceutical dispersions?

Presence of surfactants in the dispersion
Chemical composition of the dispersion medium
Characteristics of small particles (correct)
Temperature and pressure of the environment

What are the theories in the field of colloidal chemistry helpful for?

<p>Approaching puzzling problems in the preparation and dispersing of emulsions, suspensions, ointments, and powders (C)</p> Signup and view all the answers

What do dispersed systems in pharmaceuticals mainly consist of?

<p>Particulate matter (D)</p> Signup and view all the answers

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Study Notes

Colloids in Pharmaceuticals

Pharmaceutical applications of colloids are mainly related to drug delivery, targeting, and release.
Lyophilic colloids are characterized by having a strong affinity for the dispersion medium.
Understanding the behavior of pharmaceutical dispersions is fundamentally dependent on the interaction between the dispersed phase and the dispersion medium.
Theories in the field of colloidal chemistry, such as the DLVO theory and the Hamaker theory, are helpful for understanding the stability of pharmaceutical dispersions.
Dispersed systems in pharmaceuticals mainly consist of two phases: the dispersed phase (drug particles or droplets) and the dispersion medium (liquid or gas).